s390x/ioinst: pass the retaddr to all IO instructions

s390x/ioinst: pass the retaddr to all IO instructions

TCG needs the retaddr when injecting an interrupt. Let's just pass it
along and use RA_IGNORED for KVM. The value will be completely ignored for
KVM.

Convert program_interrupt() to s390_program_interrupt() directly, making
use of the passed address.

Reviewed-by: Richard Henderson <[email protected]>
Reviewed-by: Thomas Huth <[email protected]>
Signed-off-by: David Hildenbrand <[email protected]>
Message-Id: <20171130162744[email protected]>
Signed-off-by: Cornelia Huck <[email protected]>